CFR › Title 43 › Part 4300 › §4300.5343 CFR §4300.53Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkYes. BLM may reduce it at any time but must notify you at least 30 days before taking this action. BLM can reduce the area when:(a)BLM determines that the area is too large for the number of reindeer you are grazing; or(b)When disposal, withdrawal, natural causes, such as drought or fire, or any other reason in § 4300.50 so requires.